I've got pretty much the example from:
http://wiki4.caucho.com/Resin_4_Java_EE_Basic_Servlet,_Comet,_and_WebSocket_Tutorial#Hello.2C_World_WebSocket_in_Resin
This runs fine in my local env with resin on 8080 and Apache on 80
(Win), same config on a Fedora 21 QA server but when deployed to
production, which uses mod_caucho, I see
[02-04-15 16:16:46.897] 35 ErrorPageManager sendServletErrorImpl
java.lang.UnsupportedOperationException: com.caucho.server.hmux.HmuxRequest
at
com.caucho.server.http.AbstractHttpRequest.startDuplex(AbstractHttpRequest.java:1717)
at
com.caucho.server.http.HttpServletRequestImpl.startWebSocket(HttpServletRequestImpl.java:1646)
at
com.foo.WebSocketServlet.service(WebSocketServlet.java:55)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:97)
at
com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109)
at
com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:156)
at
com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:95)
at
com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:289)
at
com.caucho.server.hmux.HmuxRequest.handleInvocation(HmuxRequest.java:476)
at
com.caucho.server.hmux.HmuxRequest.handleRequestImpl(HmuxRequest.java:374)
at
com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:341)
at
com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:1349)
at
com.caucho.network.listen.TcpSocketLink.handleRequest(TcpSocketLink.java:1305)
at
com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:1289)
at
com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:1197)
at
com.caucho.network.listen.TcpSocketLink.handleAcceptTaskImpl(TcpSocketLink.java:993)
at
com.caucho.network.listen.ConnectionTask.runThread(ConnectionTask.java:117)
at
com.caucho.network.listen.ConnectionTask.run(ConnectionTask.java:93)
at
com.caucho.network.listen.SocketLinkThreadLauncher.handleTasks(SocketLinkThreadLauncher.java:169)
at
com.caucho.network.listen.TcpSocketAcceptThread.run(TcpSocketAcceptThread.java:61)
at
com.caucho.env.thread2.ResinThread2.runTasks(ResinThread2.java:173)
at
com.caucho.env.thread2.ResinThread2.run(ResinThread2.java:118)
The line in my code which causes this is wsReq.startWebSocket(listener);
again from that example. It's not kidding either ;-) The code it hits
from AbstractHttpRequest is:
public SocketLinkDuplexController startDuplex(SocketLinkDuplexListener
handler)
{
throw new UnsupportedOperationException(getClass().getName());
}
Now I know there are a few references to "(The WebSocketServletRequest
API is temporary until the next Servlet specification integrates the
startWebSocket method directly.)", but what could cause this to fail on
the mod_caucho installation? Or am I looking in the wrong place?
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